For the past few weeks, there has been much ado about Carrier IQ, the rootkit unknowingly pre-loaded in over 100 million smartphones around the world.

The company has been accused of being a rootkit/keylogger pre-installed Android, iOS, BlackBerry and Nokia devices around the world. The software quietly watches and logs all keystrokes entered into the device, including texts. It also monitors location, when you shut your phone off, and who you call.

That leads us to the quick guide on how to check whether your phone has Carrier IQ running on it.

What carriers, OEMs are known to have Carrier IQ installed?

So far, Sprint, AT&T, T-Mobile, Samsung, Motorola and HTC have all confirmed they use the rootkit on some devices, but no company has confirmed what models. Verizon has vehemently denied using it on any models. So have HP and Microsoft.

How to check with the Logging Test App v7 (root)

This part of the guide requires root access to your device. Most devices are very easily rooted, but you do so at your own risk. If you do not have root, check the next section down.